From: Hao Jia <jiahao1@lixiang.com>

This is the first half of the patch series[1]. The remaining part,
which covers proactive writeback, will be submitted later once the
swap tiering design is finalized.

This series fixes and improves the zswap global shrinker (shrink_worker()):
Patch 1: Fix missing global shrinker when memory cgroup is disabled.
Patch 2: Extend shrink_memcg() to support batch writeback and update its
         return value semantics, thereby improving the writeback efficiency
         in the shrink_worker() path.

[1] https://lore.kernel.org/all/20260629112032.20423-1-jiahao.kernel@gmail.com

Hao Jia (2):
  mm/zswap: Fix global shrinker when memory cgroup is disabled
  mm/zswap: Support batch writeback in shrink_memcg()

 mm/zswap.c | 100 +++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 75 insertions(+), 25 deletions(-)

-- 
2.34.1